Service Manual

8-22
Table of Contents
Twin Cylinder Engine Service Manual
February 2017 - Digital Edition
ENGINE INSPECTION AND RECONDITIONING
Lower End Inspection and Reconditioning (Cont.)
Connecting Rods (Cont.)
4. Crankshaft end side/thrust clearance, measure and compare to specifications (Figure 22).
Connecting Rod Large End Axial Clearance
Standard 0.0177-0.0374 in.
Service Limit 0.0413 in.
5. Connecting rod large end oil clearance (radial)
a. Clean all oil from the crankshaft rod journal and thrust side.
b. Place a piece of plastic gauge on the crankshaft rod journal, assemble connecting rod matching cap/rod
stamping, and tighten the bolts to specified torque. Bolt torque 106 in-lbs. (12.5 Nm).
NOTE: Do not rotate the crankshaft while tightening the connecting rod bolt (Figure 22).
c. Remove the connecting rod and measure the plastic gauge.
Plastic Gauge
Standard 0.0015-0.0024 in.
Service Limit 0.0032 in.
d. If the clearance is greater than the service limit, replace the connecting rod and recheck clearance with a
new rod. If the clearance sill exceeds the service limit, replace the crankshaft and repeat the previous steps.
e. Repeat for other connecting rod.
12.5 N·m
Figure 22
106 in-lbs. (12.5 Nm)